<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <style>
        div {
        	width: 200px;
        	height: 200px;
        	/* background-color: pink; */
        	animation: moving 2s linear infinite;

        }
        @keyframes moving {
        	from {
        		transform: translate3d(0, 0, 0);
        	}
        	to {
        		transform: translate3d(500px, 0, 0);
        	}
        }
        </style>
    </head>
    <body>
    <div>222</div>
    </body>
</html>